Built-in pipes (date, currency, uppercase) in Angular - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the date pipe in Angular?

The date pipe formats a date value according to a specified format, making it easy to display dates in a readable way.

beginner

How does the currency pipe help in Angular templates?

The currency pipe formats a number as a currency string, adding currency symbols and decimal places based on locale and options.

beginner

What does the uppercase pipe do in Angular?

The uppercase pipe transforms all letters in a string to uppercase, useful for consistent text display.

intermediate

Show an example of using the date pipe to display the current date in 'fullDate' format.

Example: {{ today | date:'fullDate' }} where today is a Date object. This displays a full readable date like 'Tuesday, June 6, 2023'.

intermediate

Can you combine multiple pipes in Angular? For example, how to uppercase a currency formatted number?

Yes, you can chain pipes. Example: {{ amount | currency:'USD' | uppercase }} will format the number as USD currency and then convert the result to uppercase letters.

Which Angular pipe would you use to format a number as money?

A json

B date

C uppercase

D currency

The currency pipe formats numbers as currency values.

What does the uppercase pipe do?

A Converts text to uppercase

B Formats dates

C Converts text to lowercase

D Formats numbers

The uppercase pipe changes all letters in a string to uppercase.

How do you apply a pipe in an Angular template?

A Using square brackets []

B Using the pipe symbol |

C Using parentheses ()

D Using curly braces {}

Pipes are applied using the pipe symbol | in Angular templates.

Which pipe would you use to display a date as 'Jun 6, 2023'?

A uppercase

B currency

C date:'mediumDate'

D json

The date pipe with the format 'mediumDate' shows dates like 'Jun 6, 2023'.

Can you chain pipes in Angular templates?

A Yes, by using multiple pipe symbols |

B No, only one pipe per expression

C Yes, by separating with commas

D Only with custom pipes

You can chain pipes by using multiple | symbols, like {{ value | pipe1 | pipe2 }}.

Explain how to use the Angular date pipe to format a date and why it is helpful.

Think about how dates look different in various places and how the pipe helps.

Describe how you can combine the currency and uppercase pipes in Angular and what the result looks like.

Consider how pipes process data step-by-step.